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Our Team

Battalgazi Yildirim

Battalgazi Yildirim
CEO and CTO

Dr. Yildirim founded Zizmos, Inc. in 2014. He received his M.Sc. in Applied Mathematics in 2008, and Ph.D. in Engineering from Brown University in 2012, having specialized in numerical methods and high-performance and scientific computing. Prior to Zizmos, he was a postdoctoral research fellow in Department of Geophysics at Stanford University, helping to develop algorithms and analytics for the Quake Catcher Network (QCN).

Greg Stillman

Greg Stillman
Chief Business Development Officer

Greg Stillman graduated from the University of Utah with dual bachelor degrees in Chemistry and Economics. Born and raised in Salt Lake City, his undergraduate research focused on monitoring technologies for subsurface storage of carbon dioxide. After college, Greg spent five years working with the Department of Energy helping to commercialize geothermal technologies that can produce renewable and clean baseload energy. His portfolio of technologies included geophysical sensors—essential to Zizmos. In 2014, Greg entered the joint MS/MBA graduate program at Stanford University.

Mark Johnston

Mark Johnston
Hardware and Software Engineering Lead

Mark has worked as a lab development engineer at Hewlett Packard designing embedded microprocessor boards and IO for HP instruments and then wrote firmware and higher level C code for the instruments. Mark went on to work on video products and video file systems from high level over the network file systems to low level realtime embedded code in the decoder and encoder boards for the video servers at Pinnacle systems and then Avid Systems which also included programmable logic and some FPGA work. Mark has worked for NetApp where he coded for network file system management systems for several years. More recent efforts have been in the area of embedded hardware and coding of robotic systems designing custom hardware to solve the electromechanical challenges of small-scale robots.

Mitchel Kelonye

Mitchel Kelonye
Engineer, Backend Services

Mitchel is our cloud developer with deep understanding of the latest web development trends. He has built many successful web and mobile applications and sees Zizmos as his next challenge.


Jesse F. Lawrence

Jesse F. Lawrence
Board Member

He received his PhD in Geophysics from Washington University in St. Louis (2004), and performed postdoctoral training at Scripps Institute of Oceanography. He is the co-founder of the Quake-Catcher Network (founded in 2007) at Stanford University, which created the world's largest strong-motion seismic network using inexpensive seismic sensors and internet-connected computers.

Greg Lowitz

Greg Lowitz
Board Member

Greg Lowitz joined the Zizmos board in 2015 in his current capacity as founder and CEO of Buildera, a Silicon Valley company delivering measurement solutions for structural forensics. He received his B.Sc. and M.Sc. in Electrical Engineering from Stanford University. Greg has held a wide range of senior management and executive leadership roles with startups and leading Silicon Valley companies including HP, Louth Automation (acquired by Harris for $85M), Pinnacle Systems (acquired by Avid Technology for $400M), NetApp, RipCode (acquired by RGB Networks), and EMC. Prior to Buildera, Greg was Sr. Director of Operations for the BRS division of EMC, scaling support and business operations during hyper-growth to $4B in revenue. Greg has authored multiple peer-reviewed publications and four patents (two awarded, two pending) in video image processing and structural crack monitoring.